Sacred Heart School Photo

Best Washington Private Schools Belonging to Western Association of Schools and Colleges (WASC) (2025-26)

For the 2025-26 school year, there are 6 private schools belonging to Western Association of Schools and Colleges (WASC) serving 1,678 students in Washington. You can also find more schools membership associations in Washington.
The top ranked private schools belonging to Western Association of Schools and Colleges (WASC) in Washington include BASIS Independent Bellevue, Sacred Heart School, and St. Luke School.
The average acceptance rate is 79%, which is lower than the Washington private school average acceptance rate of 82%.
83% of private schools belonging to Western Association of Schools and Colleges (WASC) in Washington are religiously affiliated (most commonly Catholic and Assembly of God).

Top Ranked Private Schools Belonging to Western Association of Schools and Colleges (WASC) in Washington (2025-26)

School
Location
Quick Facts
15749 NE 4th Street
Bellevue, WA 98008
(425) 689-3376
Gr: K-12 | 363 students Avg. class size: 20 students Sports: 6 | Extracurrculars: 27 Tuition & acceptance rate listed
Sacred Heart School
Sacred Heart School Photo
(Catholic)
9450 N.E. 14th Street
Bellevue, WA 98004
(425) 451-1773
Gr: PK-8 | 444 students Avg. class size: 22 students Sports: 5 | Extracurrculars: 4 Tuition listed
St. Luke School
St. Luke School Photo - When your family enters St Luke, you become part of a network of support: a family of teachers and staff that know your child from the time they enter the school, a spectrum of parent groups and organizations that all are focused on the well being and healthy development of your child, and a community of fellow parents .
(Catholic)
(2)
17533 Saint Luke Place N
Seattle, WA 98133
(206) 542-1133
Gr: PK-8 | 372 students Avg. class size: 17 students Sports: 8 | Extracurrculars: 12 Tuition & acceptance rate listed
Gateway Christian Schools
Gateway Christian Schools Photo - 3rd grade
(Assembly of God)
(2)
705 NE Lincoln Road
Poulsbo, WA 98370
(360) 779-9189
Gr: PK-5 | 144 students Avg. class size: 16 students Extracurrculars: 2 Tuition listed
St. Michael Catholic School
(Catholic)
1514 Pine Ave
Snohomish, WA 98290
(360) 568-0821
Gr: PK-8 | 163 students Avg. class size: 15 students Acceptance rate listed
St. Nicholas Catholic School
St. Nicholas Catholic School Photo - Kindergarten students listen attentively.
(Catholic)
(8)
3555 Edwards Dr
Gig Harbor, WA 98335
(253) 858-7632
Gr: PK-8 | 192 students Avg. class size: 16 students Sports: 3 Tuition listed

Recent Articles

Transferring from Public to Private School Mid-Year: What to Expect
Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.
A Guide to Day vs. Boarding School: Which Is Right for Your Family
A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.
The A to Z of Private Schools 2025
The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.